com.google.gwt.http.client.URL Java Examples

/**
 * Build a query string out of a map of key/value pairs.
 * @param queryEntries
 */
public static String buildQueryString(Map<String, String> queryEntries) {
  StringBuffer sb = new StringBuffer();
  boolean firstIteration = true;
  for (Entry<String, String> e : queryEntries.entrySet()) {
    if (firstIteration) {
      sb.append('?');
    } else {
      sb.append('&');
    }
    String encodedName = URL.encodeComponent(e.getKey());
    sb.append(encodedName);

    sb.append('=');

    String encodedValue = URL.encodeComponent(e.getValue());
    sb.append(encodedValue);
    firstIteration = false;
  }
  return sb.toString();
}
 

/**
 * showEmbedPDF
 *
 * @param uuid Unique document ID to be previewed.
 */
public void showEmbedPDF(String uuid) {
	hideWidgetExtension();
	vPanel.clear();

	if (previewEvent != null) {
		vPanel.add(hReturnPanel);
		vPanel.setCellHeight(hReturnPanel, String.valueOf(TURN_BACK_HEIGHT) + "px");
	}

	vPanel.add(pdf);
	vPanel.setCellHorizontalAlignment(pdf, HasAlignment.ALIGN_CENTER);
	vPanel.setCellVerticalAlignment(pdf, HasAlignment.ALIGN_MIDDLE);

	if (previewAvailable) {
		String url = RPCService.DownloadServlet + "?inline=true&uuid=" + URL.encodeQueryString(uuid);
		pdf.setHTML("<div id=\"pdfembededcontainer\">" +
				"<object id=\"" + pdfID + "\" name=\"" + pdfID + "\" width=\"" + width + "\" height=\"" + height + "\" type=\"application/pdf\" data=\"" + url + "\"&#zoom=85&scrollbar=1&toolbar=1&navpanes=1&view=FitH\">" +
				"<p>Browser plugin suppport error, PDF can not be displayed</p>" +
				"</object>" +
				"</div>\n"); // needed for rewriting  purpose
	} else {
		swf.setHTML("<div id=\"pdfembededcontainer\" align=\"center\"><br><br>" + Main.i18n("preview.unavailable") + "</div>\n");
	}
}
 

protected void setQueryString(String queryString) {
	this.queryString = queryString;
	paramMap = new HashMap<String, String>();

	if (queryString != null && queryString.length() > 1) {
		String qs = queryString.substring(1);
		String[] kvPairs = qs.split("&");
		for (int i = 0; i < kvPairs.length; i++) {
			String[] kv = kvPairs[i].split("=");
			if (kv.length > 1) {
				paramMap.put(kv[0], URL.decodeComponent(kv[1]));
			} else {
				paramMap.put(kv[0], "");
			}
		}
	}
}
 

public static String webstartURL(String appName, Map<String, String> params) {
	StringBuffer url = new StringBuffer(GWT.getHostPageBaseURL());
	url.append("webstart/");
	url.append(appName);
	url.append(".jsp?random=");
	url.append(new Date().getTime());
	url.append("&language=");
	url.append(I18N.getLocale());
	url.append("&docLanguage=");
	url.append(I18N.getDefaultLocaleForDoc());
	url.append("&sid=");
	url.append(Session.get().getSid());
	if (params != null)
		for (String p : params.keySet()) {
			url.append("&");
			url.append(p);
			url.append("=");
			url.append(URL.encode(params.get(p)));
		}
	return url.toString();
}
 

public void authenticate() {
	if (!CONSTANTS.allowUserLogin()) {
		if (isAllowLookup())
			doLookup();
		else
			ToolBox.open(GWT.getHostPageBaseURL() + "login.do?target=" + URL.encodeQueryString(Window.Location.getHref()));
		return;
	}
	AriaStatus.getInstance().setText(ARIA.authenticationDialogOpened());
	iError.setVisible(false);
	iDialog.center();
	Scheduler.get().scheduleDeferred(new ScheduledCommand() {
		@Override
		public void execute() {
			iUserName.selectAll();
			iUserName.setFocus(true);
		}
	});
}
 

/**
 * addDocument
 */
private void addDocumentToWikiEditor() {
	if (selectedRow >= 0) {
		String uuid = documentTable.getText(selectedRow, 2);
		String name = UtilComunicator.getName(documentTable.getText(selectedRow, 1));

		switch (type) {
			case FIND_DOCUMENT:
				Wiki.get().addDocumentTag(uuid, name);
				break;

			case FIND_IMAGE:
				String url = RPCService.DownloadServlet;
				url += "?uuid=" + URL.encodeQueryString(uuid);
				Wiki.get().addImageTag(url, getParameters());
				break;
		}
	}
}
 

/**
 * Scrub a url if scrubbing is turned on
 *
 * Does not scrub urls with leading hashes
 *
 * @param url
 * @return The scrubbed version of the url, if it's not already scrubbed
 */
public static String scrub(String url) {
  if (enableScrubbing) {
    if (url.startsWith("#") || url.startsWith(REFERRER_SCRUBBING_URL)) {
      // NOTE(user): The caller should be responsible for url encoding if
      // neccessary. There is no XSS risk here as it is a fragment.
      return url;
    } else {
      String x = REFERRER_SCRUBBING_URL + URL.encodeComponent(url);
      return x;
    }
  } else {
    // If we are not scrubbing the url, then we still need to sanitize it,
    // to protect against e.g. javascript.
    String sanitizedUri = EscapeUtils.sanitizeUri(url);
    return sanitizedUri;
  }
}
 

/**
 * Scrub a url if scrubbing is turned on
 *
 * Does not scrub urls with leading hashes
 *
 * @param url
 * @return The scrubbed version of the url, if it's not already scrubbed
 */
public static String scrub(String url) {
  if (enableScrubbing) {
    if (url.startsWith("#") || url.startsWith(REFERRER_SCRUBBING_URL)) {
      // NOTE(user): The caller should be responsible for url encoding if
      // neccessary. There is no XSS risk here as it is a fragment.
      return url;
    } else {
      String x = REFERRER_SCRUBBING_URL + URL.encodeComponent(url);
      return x;
    }
  } else {
    // If we are not scrubbing the url, then we still need to sanitize it,
    // to protect against e.g. javascript.
    String sanitizedUri = EscapeUtils.sanitizeUri(url);
    return sanitizedUri;
  }
}
 

protected void setQueryString(String queryString) {
	this.queryString = queryString;
	paramMap = new HashMap<String, String>();

	if (queryString != null && queryString.length() > 1) {
		String qs = queryString.substring(1);
		String[] kvPairs = qs.split("&");
		for (int i = 0; i < kvPairs.length; i++) {
			String[] kv = kvPairs[i].split("=");
			if (kv.length > 1) {
				paramMap.put(kv[0], URL.decodeQueryString(kv[1]));
			} else {
				paramMap.put(kv[0], "");
			}
		}
	}
}
 

private SelectHandler createUrlToShare(final VerticalPanel geoDataContainer) {
	return new SelectHandler() {
		@Override
		public void onSelect(SelectEvent event) {
			urlToShareAnchor.setHref(getHref());
			urlToShareAnchor.setText(
					UIMessages.INSTANCE.seeOtherWindow("GeoWE Project"),
					Direction.LTR);

			urlShared.setText(getHref());
			urlPanel.setVisible(true);
			urlShared.setVisible(true);
		}

		private String getHref() {
			String baseUrl = GWT.getHostPageBaseURL();

			baseUrl += "?projectUrl="
					+ URL.encodeQueryString(urlTextField.getValue());

			return baseUrl;
		}
	};
}
 

@Override
public List<PlaceRequest> toPlaceRequestHierarchy(String historyToken) throws TokenFormatException {
	historyToken = URL.decodeQueryString(historyToken);

	int split = historyToken.indexOf(hierarchySeparator);
	if (split == 0) {
		throw new TokenFormatException("Place history token is missing.");
	} else {
		List<PlaceRequest> result = new ArrayList<PlaceRequest>();
		if (split == -1) {
			result.add(unescapedToPlaceRequest(historyToken)); // History token consists of a single place token
		} else {
			String[] placeTokens = historyToken.split(hierarchySeparator);
			for (String placeToken : placeTokens) {
				if (placeToken.isEmpty()) {
					throw new TokenFormatException("Bad parameter: Successive place tokens require a single '" + hierarchySeparator + "' between them.");
				}
				result.add(unescapedToPlaceRequest(placeToken));
			}
		}
		return result;
	}
}
 

/**
 * Download files exported as zip
 *
 * @author danilo
 */
@Deprecated
public static void downloadFiles(List<String> path, String params) {
	if (!params.equals("")) {
		params = "&" + params;
	}

	final Element downloadIframe = RootPanel.get("__download").getElement();
	String url = RPCService.DownloadServlet + "?export" + params;

	for (String p : path) {
		url += "&pathList=" + URL.encodeQueryString(p);
	}

	DOM.setElementAttribute(downloadIframe, "src", url);
}
 

private String createWfsUrl() {
	StringBuffer url = new StringBuffer(serviceUrl);
	url.append("?request=GetFeature");
	url.append("&service=WFS");
	url.append("&version=" + version);
	url.append("&typeName=" + nameSpaceFeatureType);
	if (maxFeatures != 0) {
		url.append(getMaxFeaturesLimit());
	}
	if (!getFormat().isEmpty()) {
		url.append(getOutputFormat());
	}
	if (queryBbox) {
		url.append("&srsName=" + getEpsg());
		url.append("&bbox=" + bbox.getLowerLeftX() + ","
				+ bbox.getLowerLeftY() + "," + bbox.getUpperRightX() + ","
				+ bbox.getUpperRightY());
	} else {
		url.append("&CQL_FILTER=" + URL.encodeQueryString(cql));
	}
	return url.toString();
}
 

/**
 * Utility function to convert an attribute string to a Gadget StateMap.
 *
 * @param attribute attribute value string.
 * @return StateMap constructed from the attribute value.
 */
private StateMap attributeToState(String attribute) {
  StateMap result = StateMap.create();
  if ((attribute != null) && !attribute.equals("")) {
    log("Unescaped attribute: ", URL.decodeComponent(attribute));
    result.fromJson(URL.decodeComponent(attribute));
    log("State map: ", result.toJson());
  }
  return result;
}
 

UrlParameters(String query) {
  if (query.length() > 1) {
    String[] keyvalpairs = query.substring(1, query.length()).split("&");
    for (String pair : keyvalpairs) {
      String[] keyval = pair.split("=");
      // Some basic error handling for invalid query params.
      if (keyval.length == 2) {
        map.put(URL.decodeComponent(keyval[0]), URL.decodeComponent(keyval[1]));
      } else if (keyval.length == 1) {
        map.put(URL.decodeComponent(keyval[0]), "");
      }
    }
  }
}
 

/**
 * Processes changes in the gadget element attributes.
 * TODO(user): move some of this code to the handler.
 *
 * @param name attribute name.
 * @param value new attribute value.
 */
public void onAttributeModified(String name, String value) {
  log("Attribute '", name, "' changed to '", value, "'");
  if (userPrefs == null) {
    log("Attribute changed before the gadget is initialized.");
    return;
  }

  if (name.equals(URL_ATTRIBUTE)) {
    source = (value == null) ? "" : value;
  } else if  (name.equals(TITLE_ATTRIBUTE)) {
    String title = (value == null) ? "" : URL.decodeComponent(value);
    if (!title.equals(ui.getTitleLabelText())) {
      log("Updating title: ", title);
      ui.setTitleLabelText(title);
    }
  } else if (name.equals(PREFS_ATTRIBUTE)) {
    updatePrefsFromAttribute(value);
  } else if (name.equals(STATE_ATTRIBUTE)) {
    StateMap newState = attributeToState(value);
    if (!state.compare(newState)) {
      String podiumState = newState.get(PODIUM_STATE_NAME);
      if ((podiumState != null) && (!podiumState.equals(state.get(PODIUM_STATE_NAME)))) {
        sendPodiumOnStateChangedRpc(getGadgetName(), podiumState);
      }
      state.clear();
      state.copyFrom(newState);
      log("Updating gadget state: ", state.toJson());
      gadgetStateSubmitter.submit();
    }
  }
}
 

@Override
public String decode(String encodedValue) throws URIEncoderDecoder.EncodingException {
  String ret = URL.decodePathSegment(encodedValue);
  if (ret.indexOf(0xFFFD) != -1) {
    throw new URIEncoderDecoder.EncodingException("Unable to decode value " + encodedValue
        + " it contains invalid UTF-8");
  }
  return ret;
}
 

private static String getUrl(SearchRequest searchRequest) {
    String query = URL.encodeQueryString(searchRequest.getQuery());
    String params =
        "?query=" + query +
        "&index=" + searchRequest.getIndex() +
        "&numResults=" + searchRequest.getNumResults();
    return SEARCH_URL_BASE + "/" + params;
}
 

/**
 * Construct encoded URI part from gives values.
 *
 * @param separator the separator of parameters from current URI part
 * @param name      the parameter name
 * @param values    the parameter value(s), each object will be converted to a {@code String} using its {@code
 *                  toString()} method.
 *
 * @return encoded URI part
 */
@Override
public String asUriPart(String separator, String name, String... values) {
    assertNotNullOrEmpty(name, "Parameter name cannot be null or empty.");
    String uriPart = URL.encodeQueryString(name) + "=";
    String sep = "";
    for (String value : values) {
        assertNotNullOrEmpty(value, "Parameter value of *" + name
                + "* null or empty. You must inform a valid value");

        uriPart += sep + URL.encodeQueryString(value);
        sep = ",";
    }
    return uriPart;
}
 

/**
 * Construct encoded URI part from gives values.
 *
 * @param separator the separator of parameters from current URI part
 * @param name      the parameter name
 * @param values    the parameter value(s), each object will be converted to a {@code String} using its {@code
 *                  toString()} method.
 *
 * @return encoded URI part
 */
@Override
public String asUriPart(String separator, String name, String... values) {
    assertNotNullOrEmpty(name, "Parameter name cannot be null or empty.");
    String uriPart = "";
    String sep = "";
    for (String value : values) {
        assertNotNullOrEmpty(value, "Parameter value of *" + name
                + "* null or empty. You must inform a valid value");

        uriPart += sep + URL.encodeQueryString(name) + "=" + URL.encodeQueryString(value);
        sep = separator;
    }
    return uriPart;
}
 

/**
 * Tests the IFrame URI generator of Gadget class.
 */
public void testIframeUri() {
  String xmlSource = "http://test.com/gadget.xml";
  String href = "http://" + Location.getHost();
  String hrefEscaped = href.replace("?", "%3F");
  if (hrefEscaped.endsWith("/")) {
    hrefEscaped = hrefEscaped.substring(0, hrefEscaped.length() - 1);
  }
  int clientInstanceId = 1234;
  GadgetUserPrefs userPrefs = GadgetUserPrefs.create();
  userPrefs.put("pref1", "value1");
  userPrefs.put("pref2", "value2");
  GadgetMetadata metadata = getTestMetadata(xmlSource);
  WaveId waveId = WaveId.of("wave.google.com", "123");
  WaveletId waveletId = WaveletId.of("wave.google.com", "conv+root");
  WaveletName name = WaveletName.of(waveId, waveletId);
  String securityToken = "SECURITY";
  GadgetWidget gadget = GadgetWidget.createForTesting(
      clientInstanceId, userPrefs, name, securityToken, new FakeLocale());
  int gadgetInstanceId = -12345;
  String url = gadget.buildIframeUrl(gadgetInstanceId, metadata.getIframeUrl(VIEW_NAME));
  String expectedValue =
      "//0" + GADGET_SERVER + "/gadgets"
          + "/ifr?url=http://test.com/gadget.xml&view=canvas&nocache=1&mid=" + gadgetInstanceId
          + "&lang=wizard&country=OZ&parent=" + hrefEscaped + "&wave=1&waveId="
          + URL.encodeQueryString(ModernIdSerialiser.INSTANCE.serialiseWaveId(waveId))
          + "#rpctoken=" + gadget.getRpcToken() + "&st=" + securityToken
          + "&up_pref1=value1&up_pref2=value2";
  assertEquals(expectedValue, url);
}
 

public HistoryToken(PageType type) {
	iType = type.name();
	
	// 1. take page type defaults --> DEFAULTS
	if (type.getParams() != null)
		for (int i = 0; 1 + i < type.getParams().length; i += 2)
			iDefaults.put(type.getParams()[i], type.getParams()[i + 1]);

	// 2. take page parameters --> DEFAULTS (on top of the page type defaults)
	for (Map.Entry<String, List<String>> params: Window.Location.getParameterMap().entrySet())
		iDefaults.put(params.getKey(), params.getValue().get(0));
	
	// 3. take cookie --> PARAMS (override defaults)
	String cookie = EventCookie.getInstance().getHash(iType);
	if (cookie != null) {
		for (String pair: cookie.split("\\&")) {
			int idx = pair.indexOf('=');
			if (idx >= 0) {
				String key = pair.substring(0, idx);
				if (Location.getParameter(key) == null)
					iParams.put(key, URL.decodeQueryString(pair.substring(idx + 1)));
			}
		}
	}			
	
	// 4. take page token (hash) --> PARAMS (override cookie)
	parse(History.getToken());
}
 

/**
 * Appends tokens to the iframe URI fragment.
 *
 * @param fragment Original parameter fragment of the gadget URI.
 * @return Updated parameter fragment with new RPC and security tokens.
 */
private String updateGadgetUriFragment(String fragment) {
  fragment = "rpctoken=" + rpcToken +
        (fragment.isEmpty() || (fragment.charAt(0) == '&') ? "" : "&") + fragment;
  if ((securityToken != null) && !securityToken.isEmpty()) {
    fragment += "&st=" + URL.encodeComponent(securityToken);
  }
  return fragment;
}
 

/**
 * Utility function to convert an attribute string to a Gadget StateMap.
 *
 * @param attribute attribute value string.
 * @return StateMap constructed from the attribute value.
 */
private StateMap attributeToState(String attribute) {
  StateMap result = StateMap.create();
  if ((attribute != null) && !attribute.equals("")) {
    log("Unescaped attribute: ", URL.decodeComponent(attribute));
    result.fromJson(URL.decodeComponent(attribute));
    log("State map: ", result.toJson());
  }
  return result;
}
 

private static String getUrl(SearchRequest searchRequest) {
    String query = URL.encodeQueryString(searchRequest.getQuery());
    String params =
        "?query=" + query +
        "&index=" + searchRequest.getIndex() +
        "&numResults=" + searchRequest.getNumResults();
    return SEARCH_URL_BASE + "/" + params;
}
 

private void exportData() {
	int tab = iTabIndex;
	if (tab < 0)
		tab = SectioningStatusCookie.getInstance().getTab(iOnline);
	
	String query = "output=student-dashboard.csv&online=" + (iOnline ? 1 : 0) + "&tab=" + tab + "&sort=" + SectioningStatusCookie.getInstance().getSortBy(iOnline, tab);
	if (tab == 0)
		for (Long courseId: iSelectedCourseIds)
			query += "&c=" + courseId;
	if (tab == 1)
		query += "&g=" + SectioningStatusCookie.getInstance().getSortByGroup(iOnline);
	query += "&query=" + URL.encodeQueryString(iFilter.getValue());
	FilterRpcRequest req = iFilter.getElementsRequest();
	if (req.hasOptions()) {
		for (Map.Entry<String, Set<String>> option: req.getOptions().entrySet()) {
			for (String value: option.getValue()) {
				query += "&f:" + option.getKey() + "=" + URL.encodeQueryString(value);
			}
		}
	}
	if (req.getText() != null && !req.getText().isEmpty()) {
		query += "&f:text=" + URL.encodeQueryString(req.getText());
	}
	
	RPC.execute(EncodeQueryRpcRequest.encode(query), new AsyncCallback<EncodeQueryRpcResponse>() {
		@Override
		public void onFailure(Throwable caught) {
		}
		@Override
		public void onSuccess(EncodeQueryRpcResponse result) {
			ToolBox.open(GWT.getHostPageBaseURL() + "export?q=" + result.getQuery());
		}
	});
}
 

private void checkLastQuery() {
	if (Window.Location.getParameter("q") != null) {
		iFilter.setValue(Window.Location.getParameter("q"), true);
		if (Window.Location.getParameter("t") != null) {
			if ("2".equals(Window.Location.getParameter("t"))) {
				iTabBar.selectTab(1);
			} else {
				iTabBar.selectTab(0);
			}
		} else {
			loadData();
		}
	} else if (Window.Location.getHash() != null && !Window.Location.getHash().isEmpty()) {
		String hash = URL.decode(Window.Location.getHash().substring(1));
		if (!hash.matches("^[0-9]+\\:?[0-9]*@?$")) {
			if (hash.endsWith("@")) {
				iFilter.setValue(hash.substring(0, hash.length() - 1), true);
				iTabBar.selectTab(1);
			} else if (hash.endsWith("$")) {
				iFilter.setValue(hash.substring(0, hash.length() - 1), true);
				iTabBar.selectTab(2);
			} else {
				iFilter.setValue(hash, true);
				loadData();
			}
		}
	} else {
		String q = SectioningStatusCookie.getInstance().getQuery(iOnline);
		if (q != null) iFilter.setValue(q, true);
		int t = SectioningStatusCookie.getInstance().getTab(iOnline);
		if (t >= 0 && t < iTabBar.getTabCount()) {
			iTabBar.selectTab(t, false);
			iTabIndex = -1;
		}
		if (GWT_CONSTANTS.searchWhenPageIsLoaded() && q != null && !q.isEmpty())
			loadData();
	}
}
 

public String toString(String skip) {
	String ret = "";
	for (String key: new TreeSet<String>(iParams.keySet())) {
		if (key.equals(skip)) continue;
		if (!ret.isEmpty()) ret += "&";
		ret += key + "=" + URL.encodeQueryString(iParams.get(key));
	}
	return ret;
}
 

public void parse(String token) {
	if (token != null && !token.isEmpty())
		for (String pair: token.split("\\&")) {
			int idx = pair.indexOf('=');
			if (idx >= 0)
				iParams.put(pair.substring(0, idx), URL.decodeQueryString(pair.substring(idx + 1)));
		}
}
 

public String getUrl(boolean document, Long[] ids, String[] titles) {
	String url = getBaseUrl();
	url += "?type=" + (document ? "document" : "folder");
	url += "&id=";
	for (Long id : ids) {
		if (!url.endsWith("="))
			url += ",";
		url += id.toString();
	}

	for (String param : getParameters()) {
		if ("user".equals(param.trim()))
			url += "&user=" + Session.get().getUser().getUsername();
		else if ("filename".equals(param.trim())) {
			url += "&filename=";
			for (String title : titles) {
				if (!url.endsWith("="))
					url += ",";
				url += title;
			}
		}
	}

	if (getSuffix() != null && !"".equals(getSuffix()))
		url += "&" + getSuffix();

	return URL.encode(url);
}